Highway Post Office Covers
| Cover |
 |
| Postmark |
 |
| Route Map |
 |
| SSCat Num |
C291-19-F |
| New Num |
C291 |
| Route Num |
188A |
| Route Name |
Watertown and Sioux City |
| Trip Number |
19 |
| Trip Type |
First |
| Date |
1959-12-28 |
| City1 |
Watertown |
| State1 |
SD |
| City2 |
Sioux City |
| State2 |
IA |
| Notes |
Inaugural run |
| Value |
$1.00 |
| Mileage |
195 |
| Qty |
454 |
